The letter was on top of her packet of documents, and she asked him to read it when she walked to the counter. He read it, and went through all of her other documents. I can not speak to what his thinking process was or what all he considered to make the decision, but I helped her demonstrate that she had ties to Thailand for that particular officer. We got the idea from a friend of hers that got a tourist visa a few months earlier. Your mileage may vary.
A little different, but my girlfriend was able to get a US visa under similar circumstances. I wrote a letter explaining that I live in Thailand and wanted to take her with me on my next trip to the US to visit with family. They asked for my proof of living in Thailand and for my financials to demonstrate that I could finance the trip. At that point, we had been together for years and she had a few hundred thousand baht in savings. I don’t think it was just one thing, but we demonstrated enough reason to return and finances for them to give her a 10 year visa.
Then you don’t need the elite visa. You need a retirement visa. I’m not sure how many people in this group have a lot of experience with that, but there are other groups on FB that have lots of knowledge on the subject.
You are probably thinking of a retirement visa. Thai Elite is just a one and done payment for the program, which includes the 5,10, or 20 year visa and various perks depending on which one you get.